n8n
n8n is a workflow automation platform with a visual editor, hundreds of integrations, nodes for AI agents and the option to insert custom code. It can be self-hosted or used as a service and includes an MCP server for AI tools.
n8n connects services in visible workflows, with nodes for AI agents and custom code. It is self-hostable — though under a restricted licence, not as classic open-source software.
Explanation
Its appeal lies in visibility: a process is a picture that business teams can read too, and that is exactly what makes automation negotiable. For AI projects n8n is often the pragmatic middle between "code everything yourself" and "rigid SaaS tool", because model calls, data sources and approval steps live in the same flow. Two things to know first. The licence: n8n uses its own licence with restrictions on commercial redistribution — self-host yes, resell no; it is therefore not open source in the classic sense. And the data protection role: when self-hosted, n8n is neither controller nor processor, so full responsibility including a deletion concept sits with the operator. The hosted service works with a processing agreement and European storage.
Marketing Relevance
For marketing teams without their own development, n8n is often the first place where AI genuinely takes work: triaging inquiries, preparing content, connecting systems. For accountable owners it counts that processes are documented and auditable — a visible flow beats a spreadsheet workaround in any audit.
Example
A new inquiry from the form enters the flow: a model summarises it and assigns it to a service, one node writes it into the CRM, another notifies the responsible team. Uncertain cases are explicitly routed for review.
Common Pitfalls
The licence is often mistaken for open source: commercial redistribution is prohibited, which needs checking upfront in client projects. And when self-hosted, execution logs accumulate personal data — without a configured retention period you create an uncontrolled data store.
Origin & History
n8n launched as a tool for visible automation and moved to its own restricted licence in 2022. As agents took hold it added nodes for AI agents, later an MCP server through which AI tools can describe, build and run workflows. The company is based in Berlin.
Marketing Use Cases
Automatically triage, summarise and assign inquiries.
Prepare content for several channels, with an approval step.
Connect systems without development effort, for instance CRM and mail.
Recurring reports from several data sources.
Frequently Asked Questions
Is n8n open source?
Not in the classic sense. It uses its own licence permitting internal use but prohibiting commercial redistribution. For in-house self-hosting that is usually unproblematic, for resale it is not.
Who is responsible under data protection law when self-hosting?
The operator, entirely. n8n is then neither controller nor processor. That includes deliberately limiting the retention of execution logs.
n8n or custom code?
n8n wins when processes should be visible and comprehensible to business teams. Custom code wins under high load, with complex logic, or when versioning and tests are paramount.
Related Services
Go deeper: Agentic AI Hub · Governance & compliance